Another sad Hollywood superstar death was definitely Heath Ledger's in 2008. Whilst filming for his movie "The Imaginarium of Doctor Parnassus", the Australian superstar sadly passed away due to a drug overdose. The actors Johnny Depp, Jude Law, and Colin Farrell quickly took over the roles of all three versions of the character "Tony".

Brandon Lee

Brandon Lee, the son of Bruce Lee, is first on our list. During production of the movie "The Crow", he was accidentally shot by co-star Michael Massee. Due to time delays, the producers decided to use blank ammunition for all the shooting scenes. Later it was revealed that they had left a live bullet inside the chamber leading to Brandon getting shot. He died at the young age of 28.

Paul Walker

Fans also had to say goodbye to the legendary actor Paul Walker back in late 2013. While "Fast and Furious 7" was being filmed, Paul Walker was killed in a deadly car crash in Los Angeles. HIs brother Caleb and Cody took over his role for the last few scenes of the movie. Walker was only 40 years old at the time of his death.

James Dean

Our next star died over 60 years ago, but his death is still tragic nevertheless. Film icon James Dean died in a racecar accident back in 1955. His co-star Nick Adams had to take his place in the last few scenes of the movie "Giants". A great loss for Hollywood!

Bruce Lee

Bruce Lee was another actor who was taken from us way too soon. His big breakthrough would have been the cult classic "Enter The Dragon", but sadly before the movie hit theaters in 1973, Lee sadly passed away due to brain swelling in Hong Kong.

Natalie Wood

Hollywood Legend Natalie Wood became and overnight sensation for her role in "West Side Story". Whilst filming for the movie "Project Brainstorm", the 43-year-old accidentally fell out of a boat during an excursion and drowned. The movie was finished with the help of a stunt double and voice synchronization.

Marilyn Monroe

Another Hollywood icon that died during movie prouduction is no ther than the lovely Marilyn Monroe. People still think that she did in fact commit suicide, but it has yet to be confirmed. What we know is that is that Monroe passed away during the production of her last movie "Something's Got To Give".

Philip Seymour Hoffman 2006

Even the beloved actor Philip Seymour died eight days before finishing "The Hunger Games: Mockingjay". The actor is said to have overdosed on a variety of hard drugs. Instead of replacing him, the directors decided to rewrite the script to turn his character, "Plutarch Heavensby", into a supporting character.

Cory Monteith

Cory Monteith left us way too early.

David Carradine

"Kill Bill" star David Carradine was found dead in his hotelroom in Thailand exactly three days before finishing "Stretch". Suicide was speculated for a while until it was discovered that it was actually cardiovascular disease that had killed David.

Larry Hagman

Who could forget the soap opera star Larry Hagman? He became an overnight sensation with his role as "J.R. Ewing" in the hit soap opera "Dallas". During the production of the second season of the "Dallas" reboot in 2012, he was sadly diagnosed with leukemia and passed away soon after.

Jean Harlow

Jean Harlow's death came extremely unexpected for most fans. The Hollywood icon collapsed on the set of the movie "Saratoga". The actress died approximately one week later from kidney failure at the age of 26. Even though she was eventually replaced by another actress in "Saratoga", her performance in the movie is still considered some of her best work.

Aaliyah

R'n'B star Aaliyah died way too young.

Tyrone Power

Moving on to our next Hollywood icon: Tyrone Power. During the fencing scene in his last movie "Solomon and Sheba", in which he plays "King Solomon", he suffered a fatal heart attack and passed away on set. His scenes were re-shot with Yul Brynner takinh his place as the mighty king. His death came as a shock for fans and critics alike.

Andy Whitfield

Fans of the series "Spartacus" had to say goodbye to Andy Whitefield back in 2011. Whitfield played the leading role in the series was diagnosed with cancer in 2010. He died at the age of 39 in Sydney due to complications of his illness. Liam Mclntyre had to replace him in the second season of the show.

Oliver Reed

The death of the British actor Oliver Reed caused alot of problems for Ridley Scott's movie "Gladiator" back in 2000. Reed died because of a heart attack caused by excessive alcohol consumption. His already filmed scenes with mixed with that of a stunt double to complete the movie.

Jim Davis

Our list continues with another suprising "Dallas" death. Jim Davis was diagnosed with cancer during the production of the fourth season of the hit series. For a while, he continued his role often being seen sitting down and wearing a wig. After his passing in 1981, the character "Jock Ewing" was killed in a terrible helicopter crash.

John Ritter

Last, but not least, we have beloved TV star John Ritter. During audtions for "8 Simple Rules for Dating My Teenage Daughter", John Ritter suffered severe chest pains and was rushed to the hospital. He died a few days later due to heart failure. His character on the show also died an unexpected death as well.

These actors died before they could finish their projects

Another sad Hollywood superstar death was definitely Heath Ledger's in 2008. Whilst filming for his movie "The Imaginarium of Doctor Parnassus", the Australian superstar sadly passed away due to a drug overdose. The actors Johnny Depp, Jude Law, and Colin Farrell quickly took over the roles of all three versions of the character "Tony".

Brandon Lee, the son of Bruce Lee, is first on our list. During production of the movie "The Crow", he was accidentally shot by co-star Michael Massee. Due to time delays, the producers decided to use blank ammunition for all the shooting scenes. Later it was revealed that they had left a live bullet inside the chamber leading to Brandon getting shot. He died at the young age of 28.

It's sad when amazing actors pass away, but it even sadder when they pass before finishing their projects! We've put together a list of some the most talented actors who had anything but a happy end...